S6B2104 데이터 시트보기 (PDF) - Samsung

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S6B2104

80CH SEGMENT DRIVER FOR DOT MATRIX LCD

Samsung 

S6B2104

80CH SEGMENT DRIVER FOR DOT MATRIX LCD

PIN DESCRIPTION

Table 1. Pin Description

Pin No I/O

Name

Function

VDD (40) Power Operating voltage For logical circuit (+5V ± 10%, +3V ± 10%)

VSS (42)

0V (GND)

VEE (33)

Negative supply

voltage

For LCD drive circuit

V1, V3, V4 I LCD driver output Bias supply voltage terminals to drive the LCD.

(34-36)

voltage level

Bias voltage divided by the resistance is usually used

as supply voltage source. (refer to note 1)

S1-S80

(1-30,

51-100)

O LCD driver output Display data output pin which corresponds to the

respective latch contents. One of V1, V3, V4 and VEE

is selected as a display driving voltage source

according to the combination of the latched data level

and M signal (refer to note 2)

CL2 (47)

I Data shift clock

Clock pulse input for the 4 bit parallel shift register.

The data is shifted to 80 bit shift register at the falling

edge of the clock pulse. The clock pulse, which was

input when the enable bit (EIB/EOB) is not active

condition, is invalid.

M (38)

I Alternate signal for Alternate signal input pin for LCD driving.

LCD driver output Normal frame inversion signal is input

CL1 (49)

I Data latch clock The signal for latching the shift register contents is

input to this terminal. CL1 pulse "H" level initializes

power-down function block.

DISPOFFB I

(39)

Output level

control

(Display off)

Control input pin for display data output level (S1-

S80). V1 level is output from S1-S80 terminal during

"L" level input. LCD becomes non-selected by V1 level

output from every output of segment drivers and every

output of common drivers.

SHL (41)

I Data shift control EOB and EIB can be used as either input terminal or

output terminal according to the condition of SHL. The

shifting direction of each data, D0-D3, the I/O

condition of EOB and EIB, and the condition of SHL

are described in the table below. (refer to note 3).

Interface

Power

Supply

Power

LCD

Controller

Controller

Controller

Controller

VDD/VSS

8

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